PRODUCING SODA PULP FROM ASPEN. 



Table 11. — ■ Yields of experimental pulps. 



51 





Cook 

 No. 



Yields (bone-dry basis). 



Yields of 



un- 

 bleached 



pulp 

 (bone- 

 dry basis) 

 per solid 



cord. 



Yields of 

 bleached 



pulp 

 (air-dry 



basis) 

 per solid 



cord. 



Kind of test. 



Total 

 crude 

 pulp. 



Screen- 

 ings. 



Screened 



un- 

 bleached 

 pulp. 





1 

 2 

 3 



4 

 5 

 6 



7 

 8 

 9 



10 

 ill 

 12 

 13 

 14 

 15 

 16 



17 

 18 

 19 

 20 

 21 

 22 



23 



24 

 25 



26 



Per cent. 

 48.01 

 50.34 

 49.31 



46.48 

 50.01 

 44.67 

 52.63 

 55. 57 

 58.30 



50.36 



Per cent. 



0.05 



.03 



.02 



.01 

 .01 

 .01 

 .03 

 .01 

 13.02 



.08 



Per cent. 

 47.96 

 50.31 

 49.29 



46.47 

 50.00 

 44.66 

 52.60 

 55.56 

 45.28 



50.28 



Pounds. 

 1,279 

 1,342 

 1,314 



1,240 

 1,334 

 1,191 

 1,402 

 1,482 

 1', 208 



1,341 



Pounds. 

 1,406 





1,475 

 1,444 



1,372 





1,467 

 1,308 

 1,533 

 1,625 

 1,315 



1,487 









51.72 

 52.49 

 53.70 

 55.58 

 58.12 



48.67 

 50.02 

 52.55 

 54.97 

 54.85 

 57.88 



49.18 

 51.61 

 50.78 

 53.58 



.04 

 .05 

 .09 

 .44 

 19.00 



.01 

 .02 

 .04 

 .02 

 .09 

 .13 



.02 

 .01 

 .01 

 .03 



51.68 

 52.44 

 53.61 

 55. 14 

 39.12 



48.66 

 50.00 

 52.51 

 54.95 

 54.76 

 57.75 



49.16 

 51.60 

 50.77 

 53.55 



1,378 

 1,400 

 1,429 

 1,471 

 1,043 



1,298 

 1,335 

 1,400 

 1,465 

 1,460 

 1,541 



1,311 



1,376 

 1,354 

 1,429 



1,524 

 1,524 

 1,558 

 1,586 

 1,109 



1,422 





1,461 

 1,530 

 1,612 

 1,595 

 1,666 



1,432 





1,521 

 1,483 

 1,573 



1 Cook spoiled, due to defect in apparatus. 



